The easiest way to clean a glass carbouy - get some denture cleaning tabs from the grocery store. They are about $5 for a hundred tabs, may be cheaper at other locations. No specific type is necessary. Then fill up your carbouy with warm water, and add about one tab per gallon size of your jug. Watch impatiently while it fizzes, come back later when the water is clear, and all done. Sediment removed from the top without scrubbing! Rinse thoroughly and reuse your jug for another batch of wine.